Concrete pipe or culvert



G. CUOZZO.

CONCRETE PIPE 0R CULVERT. APPLICATION HYLED MAR. 9. 1921.

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CONCRETE PIPE 0R CULVERT- APPLICATION FILED MAII. 9. 1921.

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CONCRETE PIPE 0R CULVERT. APPLICATION FILED MAR. 9, 1921.

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culverts and has for STATES PATENT FFHCE@ Application filed March 9,1921.

To'aZZ 'whom t may concern.'

Be it known that I, GEORGE CUozzo, a citizen of the United States,residing at Bangor, in the county of Penobscot and State of aine, haveinvented certain new and useful Improvements in Concrete Pipes orCiulverts, of whichthe following is a specification.

This invention relates to concrete pipes or. its object the provision ofa pipe section which may be easily put in place and expeditiouslycoupled to an adobject of the invention is to provide a pipe of suchconstruction' that when the joint between two meeting sections has beenfilled by a cementitious material, separation of the pipe sections willbe prevented. A further object of the invention is to provide meanswhereby when the pipe sections are brought together, they will be lockedso that accidental endwise l separation will be prevented.

The invention is illustrated in the accompanying drawings, in which-Figure l-is an elevation of a pipe section embodying my presentimprovements;

Fig. 2 is a longitudinal section of the same;

Fig. 3 is a transverse section on the line 3 of Fig. l;

F 1g. 4 is a plan view of one end; Fig. 5 is an elevation of thereinforcement employed;

Fig. 6 is an enlarged longitudinal section through a portion of thejolnt;

Fig. 7 .is a perspective view showing the constructlon of the meetingends of the pipe sections.

My improved pipe or culvert is to be formed of reinforced concretewithin a suitalso constructed with able mold which forms thesubject-matter of an application executed simultaneously herewith. Inthe accompanying drawings, the reference numeral 1 indicates the mainbody-of the pipe which is cylindrical in form and provided with alongitudinal base or supporting rib 2 at one side. The body is a ange 3at one end and vwithin the said flanged end is an annular recess 4 within the peripheral wall of the said recess. One of the grooves 5 islocated midway the sides of the base or supporting rib 2 and this groovehas its bottom Wall inclined upwardly toward the inner portion of thepipe section and constructed with a notch 6 immediately adjacent theradialwall of the recess 4. rI he Specification of Letters Patent.

vthe obliquely disposed the walls of the grooves 5 provided atintervals-A Patented Apr. t8, 1222. Serial No. 450,876.

grooves have their longitudinal walls 7 dis-.

posed obliquely with respect to the longitudinal axis of the pipe. Thebase or supporting rib 2 terminatesl at one end flush with the outerradial wall of the flange 3 but at its opposite end terminates short ofthe end of the pipe section, as shown at 8, and embedded in the body ofthe pipe section and the said rib is a resilient dog or latch 9 which,when the pipe sections are brought together, is adapted to ride up theinclined floor of the bottom groove 5 and engage the notch 6, as shownclearly in F ig. 6, thereby locking the sections together. The saidlatch or dog is disposed between two longitudinal .ribsl0 formed uponthe body of the pipe adjacent the end of the base or rib 2 which are soshaped as to lit closely within the groove leading to the notch 6.- At apoint diametrically opposite the inclined ribs 10, a lug 1l is formedupon the pipe section which has sides parallel with the axis of thepipe, the said rib being adapted to lit closely within the uppermostgroove 5 of the meeting section.A Between the lug ll and the ribs '10,the pipe section is provided with diametrically opposite lugs 12, thelongitudinal sides of which are disposed obliquely with respect to theaxis of the pipe. These relatively 'obliquely disposed lugs are adaptedto 4enter grooves 5 and are somewhat smaller than the grooves so thatthe oblique arrangement of the grooves and the lugs will not interferewith the assembling of the pipe sections. After'the pipe sections areassembled, a cementit'ous filler is fed into the spaces between the lugsand grooves so that, when said filler has set, the pipe sections will bepermanently joined.

In making the pipe section, before any o'f the green cement is pouredinto the mold and tamped down, a reinforcement is placed within the moldand Aarranged concentrically between the inner and outer walls of thesame. This reinforcement consists of rings 13 provided in a numbercorresponding to the length ofthe pipe section to be formed and disposedat such intervals apart as experience may dictate. These rings should beof such diameter as to be disposed midway the inner and outer surfacesof the completed pipe and they are heldin fixed spaced relation bylongitudinal bars or rods 14 which extend from end to end of the pipesection, as shown. rllhe bars are tied to the rings by wire loops i 15or any other inexpensive means which in outturiled lugs 19, as shown.The por-l tions 17 and 18 of the'reinforcement conform to the flange 3of the pipe, as will be 'readily understood on reference to Fig. 2,

and immediately adjacent the lugs 19 and the bend connecting theportions 17 and 18,

rings 20 are tied or otherwise connected to the several bars or rods.

Obviously, the mold is sd shaped that lastic material deposited thereinand subjected to sufficient pressure to form a-homogeneous mass willassume the form shown in the drawings and above described. lin formingthe pipe, the mold is set on end while resting upon a pallet or otherfirm support and the cage is brought into 'proper position within themold, after which the concrete or other plastic material is fed into themold so as to fill the same and rembed the reinforcement. l j

The base 2 has fiat surfaces upon all its outer sides so that when .itis placed in the bottom of a trench or upon the surface ofthe groun'd,if it is to be so employed, it will be supported against turningmovement and the pipe sections may be readily alined so as to form thecompleted culvert or other conduit. rlhe engaging lugs and grooves willaid in guiding the adjacent pipe sections into alinemen't and when thejoint has been sealed in the manner described, a watertight orleak-proof union will be effected. The' reinforcingcage embedded in thepipe furnishes a firm support for the plastic material throughout theentire extent of the pipe section and a very strong and durable pipe isproduced at` a very low cost. rllhe spring dog or latch which serves toinitially lock the sections together prevents displacement of thecoupled sections while the joint is being sealed and thereby-reduces thelabor and time necessary to provide a conduit or culvert of any desiredlength. The pipe sections may, of course, be made in any desireddimensions and inasmuch as the supporting base adds to the strength ofthe lower portion of the pipe considerable weight may be placed upon thepipe without dislodging it or producing fractures therein.

Having thus described the invention, what is claimed as new is:

1. A pipe section consisting of a reinforced concrete body provided atone end with an annular recess receiving the meeting end of an adjacentalined pipe section, there being a longitudinally extending groove inthe annular wall of said recess and a radial notch in the base of said-grooveat the inner end of the same, and a resilient latch at theopposite end of the body, saidopposite end of the body being adapted toenter an annular recess in the meeting end of an adjacent alined pipesection and said latch being adapted to ride over the base of the groovein the annular wall of said recess and engage the notch therein.

2. A pipe section consisting of a reinforced concrete body provided atone end with an annular recess and provided in the annular wall of saidrecess with a longitudinal groove and a radial notch at the inner end ofsaid groove in the base of the same, a

pair of longitudinally extending lugs at the opposlte end of the body,and a resilient latch disposed between said lugs. 3,'A` reinforcedconcrete pipe provided at one end with an annular recess and grooves inthe peripheral wall of said recess, some of said grooves having theiropposite parallel walls disposed obliquely, and external lugs at theopposite end of the pipe section to engage the corresponding grooves ina meeting pipe section, some of said lugs being obliquely disposed toengage the obliquely disposed v grooves and` smaller than said groovesto permit the insertion of a plastic filler. j I

lln testimony whereof l aliix my signature.

Groen cUozzo. [L 8.1

